ZAPPLIGHT® BULB & RODENT REPELLER DRIVES AWAY UNWANTED rats & mice! 2-in-1 bulb emits high-frequency sonic waves that send rodents scattering, yet are totally silent to people and pets. Just install in place of any standard light bulb. Provides 600 lumens of light; 9 W LED bulb replaces standard 60 W bulb. Has 2 modes: LED & Repel or Repel only. Covers a 400 sq. ft. area. Indoor use only. 5".